Adding var declarations to prevent memory leaks (minor)
readme: updated affixes example

Fixes a syntax error in the example section
Make track() chainable

This way you can write

    var temp = require('temp').track();
Fix typo
Use native os.tmpDir that is available since node 0.8.0+.

This fixes #22.
update rimraf to 2.2.6

this removes the dependency on graceful-fs, which monkey-patches fs.
Merge branch 'master' of https://github.com/arthurschreiber/node-temp

Conflicts:
	package.json
Merge branch 'readme' of https://github.com/joliss/node-temp
Merge branch 'track' of https://github.com/joliss/node-temp
Merge branch 'patch-2' of https://github.com/LinusU/node-temp
Merge branch 'master' of https://github.com/lexaux/node-temp